Photos

Tragedy in Boston

Warning: contains graphic images

A Boston Red Sox cap left at a makeshift memorial on the Boston Marathon route April 18, 2013 in Boston. No arrests have been made in connection with the twin bombings that are the worst attack in the United States since the September 11, 2001 attacks. (Photo credit DON EMMERT/AFP/Getty Images)

A running shoe and US flag are part of a memorial on the Boston Marathon route on April 18, 2013 in Boston. Three people died when two bombs went off near the finish line during the April 15 running of the 2013 Boston Marathon. (Photo credit DON EMMERT/AFP/Getty Images)

People gather outside of the Cathedral of the Holy Cross as US President Barrack Obama and wife Michelle attend an interfaith prayer service to honor the victims of the Boston Marathon bombings April 18, 2013 in the South End neighborhood of Boston, Massachusetts. (Photo credit STAN HONDA/AFP/Getty Images)

People attend the 'Healing Our City: An Interfaith Service' dedicated to those who were gravely wounded or killed in the Boston Marathon bombing, at the Cathedral of the Holy Cross in Boston, Massachusetts, on April 18, 2013. Obama heads to Boston to mourn victims of the deadly marathon attacks, as investigators study images of a suspect who may have planted the bombs. No arrests have been made in connection with Monday's twin bombings near the finish line of the race, which sent metal fragments and nails into a crowd of thousands of runners and spectators, killing three people and wounding 180.(Photo credit JEWEL SAMAD/AFP/Getty Images)

US President Barack Obama and First Lady Michelle Obama arrive at the 'Healing Our City: An Interfaith Service' dedicated to those who were gravely wounded or killed in the Boston Marathon bombing, at the Cathedral of the Holy Cross in Boston, Massachusetts, on April 18, 2013. Obama is in Boston to mourn victims of the deadly marathon attacks, as investigators study images of a suspect who may have planted the bombs. No arrests have been made in connection with Monday's twin bombings near the finish line of the race, which sent metal fragments and nails into a crowd of thousands of runners and spectators, killing three people and wounding 180. (Photo credit JEWEL SAMAD/AFP/Getty Images)

US President Barack Obama and First Lady Michelle Obama (C) attend the 'Healing Our City: An Interfaith Service' dedicated to those who were gravely wounded or killed in the Boston Marathon bombing, at the Cathedral of the Holy Cross in Boston, Massachusetts, on April 18, 2013. Obama mourns victims of the deadly marathon attacks, as investigators study images of a suspect who may have planted the bombs. No arrests have been made in connection with Monday's twin bombings near the finish line of the race, which sent metal fragments and nails into a crowd of thousands of runners and spectators, killing three people and wounding 180. Seated next to Mrs. Obama is Massachussetts Governor Deval L. Patrick. (Photo credit JEWEL SAMAD/AFP/Getty Images)

People sign a poster as people gather in the Boston Commons for a vigil on April 16, 2013 in Boston, in the aftermath of two explosions that struck near the finish line of the Boston Marathon on April 15. Investigators said the range of suspects and motives in the grisly Boston bombings remained 'wide open' as experts assessed remnants of the crude devices designed to inflict maximum suffering. (Photo credit DON EMMERT/AFP/Getty Images)

Young children stand with lit candles during a vigil for eight-year-old Martin Richard, from Dorchester, who was killed by an explosion near the finish line of the Boston Marathon on April 16, 2013 at Garvey Park in Boston, Massachusetts. The twin bombings resulted in the deaths of three people and hospitalized at least 128. The bombings at the 116-year-old Boston race resulted in heightened security across the nation with cancellations of many professional sporting events as authorities search for a motive to the violence. (Photo by Jared Wickerham/Getty Images)

Runner Michael Zapelini wears a shirt where he wrote, 'Boston 2013 We Will Not Be Divided,' as the Baptist Health South Florida Brickell Run Club honors the victims of the Boston Marathon bombings on April 16, 2013 in Miami, Florida. The event drew approximately 1,000 people who wanted to honor the three people killed in the Boston bombing as well as the over one hundred who were injured. (Photo by Joe Raedle/Getty Images)

Runners Lily Medina pins a sign on her shirt as the Baptist Health South Florida Brickell Run Club honors the victims of the Boston Marathon bombings on April 16, 2013 in Miami, Florida. The event drew approximately 1,000 people who wanted to honor the three people killed in the Boston bombing as well as the over one hundred who were injured. (Photo by Joe Raedle/Getty Images)

A man with an American flag on his hat attends a vigil for eight-year-old Martin Richard, from Dorchester, who was killed by an explosion near the finish line of the Boston Marathon on April 16, 2013 at Garvey Park in Boston, Massachusetts. The twin bombings resulted in the deaths of three people and hospitalized at least 128. The bombings at the 116-year-old Boston race resulted in heightened security across the nation with cancellations of many professional sporting events as authorities search for a motive to the violence. (Photo by Jared Wickerham/Getty Images)

Tom and Nancy Gallagher attend a vigil ceremony April 16, 2013 in Dorcester, Massachusetts honoring the Richard family, who's 8-year-old son Martin was killed, sister Jane, who lost a leg, and mother Denise, who was also seriously injured when bombs exploded at the finish of the Boston Marathon April 15th. (Photo credit JOHN MOTTERN/AFP/Getty Images)

A woman uses her hand to keep wind from her candle as she stands with others around the pond in the Public Garden after a candlelight interfaith service at Arlington Street Church April 16, 2013 in Boston, Massachusetts, in the aftermath of two explosions that struck near the finish line of the Boston Marathon April 15. (Photo credit STAN HONDA/AFP/Getty Images)

A man holds a candle as he joins others around the pond in the Public Garden after a candlelight interfaith service at Arlington Street Church April 16, 2013 in Boston, Massachusetts, in the aftermath of two explosions that struck near the finish line of the Boston Marathon April 15. (Photo credit STAN HONDA/AFP/Getty Images)

People walk during a candlelight interfaith service at Arlington Street Church April 16, 2013 in Boston, Massachusetts, in the aftermath of two explosions that struck near the finish line of the Boston Marathon April 15. (Photo credit STAN HONDA/AFP/Getty Images)

Chinese people light candles to mourn for the victims of the Boston Marathon explosion at Olympic Forest Park on April 16, 2013 in Beijing, China. (Photo by ChinaFotoPress/Getty Images)

People walk out onto the street after a candlelight interfaith service at Arlington Street Church April 16, 2013 in Boston, Massachusetts, in the aftermath of two explosions that struck near the finish line of the Boston Marathon April 15. (Photo credit ead STAN HONDA/AFP/Getty Images)

The congregation stands during a candlelight interfaith service at Arlington Street Church April 16, 2013 in Boston, Massachusetts, in the aftermath of two explosions that struck near the finish line of the Boston Marathon April 15. (Photo credit STAN HONDA/AFP/Getty Images)

Mourners gather on the edge of the pond in the Boston Public Gardens for a candle light vigil April 16, 2013 in Boston. A few hundred people gathered to remember the victims of the bombs which exploded during the running of the Boston Marathon. (Photo credit DON EMMERT/AFP/Getty Images)

Mourners gather on the edge of the pond in the Boston Public Gardens for a candle light vigil April 16, 2013 in Boston. A few hundred people gathered to remember the victims of the bombs which exploded during the running of the Boston Marathon. (Photo credit DON EMMERT/AFP/Getty Images)

Flags fly at half staff near Trinity Church April 16, 2013 in Boston, Massachusetts, in the aftermath of two explosions that struck near the finish line of the Boston Marathon on Monday. As a mark of respect for the victims of the senseless acts of violence perpetrated on April 15, 2013, in Boston, Massachusetts, US President Barack Obama issued a proclamation that the flag of the United States shall be flown at half-staff at the White House and upon all public buildings and grounds, at all military posts and naval stations, and on all naval vessels of the Federal Government in the District of Columbia and throughout the United States and its Territories and possessions until sunset, April 20, 2013. (Photo credit STAN HONDA/AFP/Getty Images)

Warning: This gallery contains graphic images. - Runners listen to directions from a Boston Police officer at the corner of Stuart Street and Dartmouth Street after two explosive devices detonated at the finish line of the 117th Boston Marathon on April 15, 2013 in Boston, Massachusetts. Two people are confirmed dead and at least 23 injured after two explosions went off near the finish line to the marathon. (Photo by Darren McCollester/Getty Images)

Police investigate a suspicious package near the finish line of the 117th Boston Marathon on April 15, 2013.

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A SWAT team vehicle stands guard on Dalton Street near Boylston Street on April 16, 2013 in Boston, Massachusetts. Security is especially tight in the city of Boston after two explosions went off near the finish of the Marathon, killing three people and injuring at least 141 others. (Photo by Darren McCollester/Getty Images)

Police and federal officials exit an apartment complex at 364 Ocean Avenue with a possible connection to the earlier expolsions during the Boston Marathon on April 15, 2013 in Revere, Massachusetts. Three people are confirmed dead and at least 141 injured after two explosions went off near the finish line to the marathon. (Photo by Darren McCollester/Getty Images)

An unidentified woman (R) is escorted by Drug Enforcement Agency agents from the main entrance to Brigham and Women's Hospital April 15, 2013 in Boston, Massachusetts. Many who were wounded when two explosions struck near the finish line of the Boston Marathon earlier were brought to Brigham and Women's. (Photo credit STAN HONDA/AFP/Getty Images)

The outter perimeter near Massachusetts Avenue and Newbury Street is secured by police after two explosive devices detonated at the finish line of the 117th Boston Marathon on April 15, 2013 in Boston, Massachusetts. Two people are confirmed dead and at least 23 injured after two explosions went off near the finish line to the marathon. (Photo by Alex Trautwig/Getty Images)

Unclaimed finish line bags are left near the scene of a twin bombing at the Boston Marathon, on April 16, 2013 in Boston, Massachusetts. Three people are confirmed dead and at least 141 injured after the explosions went off near the finish line of the marathon yesterday. The bombings at the 116-year-old Boston race, resulted in heightened security across the nation with cancellations of many professional sporting events as authorities search for a motive to the violence. (Photo by Spencer Platt/Getty Images)

Claire Schaeffer Dufy walks with a sign she made to support her runner husband, Scott, near the scene of a twin bombing at the Boston Marathon on April 16, 2013 in Boston, Massachusetts. The twin bombings, which occurred near the marathon finish line, resulted in the deaths of three people while hospitalizing at least 128. The bombings at the 116-year-old Boston race, resulted in heightened security across the nation with cancellations of many professional sporting events as authorities search for a motive to the violence. (Photo by Spencer Platt/Getty Images)

A runner stands at a security gate near the scene of a twin bombing at the Boston Marathon on April 16, 2013 in Boston, Massachusetts. The twin bombings, which occurred near the marathon finish line, resulted in the deaths of three people while hospitalizing at least 128. The bombings at the 116-year-old Boston race, resulted in heightened security across the nation with cancellations of many professional sporting events as authorities search for a motive to the violence. (Photo by Spencer Platt/Getty Images)

A sign on a door makes notice of being closed at Trident Booksellers Cafe on Newbury Street shows closed on April 16, 2013 in Boston, Massachusetts. Security is especially tight in the city of Boston after two explosions went off near the finish of the Marathon, killing three people and injuring at least 141 others. (Photo by Darren McCollester/Getty Images)

Boston police officers stand at barriers closing off Boylston Street April 16, 2013 in Boston, Massachusetts, in the aftermath of two explosions that struck near the finish line of the Boston Marathon April 15. A massive probe was underway Tuesday after two bombs struck the Boston Marathon, killing at least three and wounding more than 100. Monday's blasts near the finishing line raised fears of a terrorist attack more than a decade after nearly 3,000 people were killed in suicide airliner strikes on New York, Washington and Pennsylvania on September 11, 2001. US President Barack Obama went on national television to warn against 'jumping to conclusions' but a senior White House official, speaking on condition of anonymity, said such an attack was 'clearly an act of terror.' (Photo credit STAN HONDA/AFP/Getty Images)

A runner stands at a security gate near the scene of a twin bombing at the Boston Marathon on April 16, 2013 in Boston, Massachusetts. The twin bombings, which occurred near the marathon finish line, resulted in the deaths of three people while hospitalizing at least 128. The bombings at the 116-year-old Boston race, resulted in heightened security across the nation with cancellations of many professional sporting events as authorities search for a motive to the violence. (Photo by Spencer Platt/Getty Images)

Unused thermal blankets for marathon participants are piled near the scene of a twin bombing at the Boston Marathon on April 16, 2013 in Boston, Massachusetts. The twin bombings, which occurred near the marathon finish line, resulted in the deaths of three people while hospitalizing at least 128. The bombings at the 116-year-old Boston race, resulted in heightened security across the nation with cancellations of many professional sporting events as authorities search for a motive to the violence. (Photo by Spencer Platt/Getty Images)

A Boston police officer stands near the scene of a twin bombing at the Boston Marathon on April 16, 2013 in Boston, Massachusetts. The twin bombings, which occurred near the marathon finish line, resulted in the deaths of three people while hospitalizing at least 128. The bombings at the 116-year-old Boston race, resulted in heightened security across the nation with cancellations of many professional sporting events as authorities search for a motive to the violence. (Photo by Spencer Platt/Getty Images)

A Boston police officer stands guard near the scene of a twin bombing at the Boston Marathon on April 16, 2013 in Boston, Massachusetts. The twin bombings, which occurred near the marathon finish line, resulted in the deaths of three people while hospitalizing at least 128. The bombings at the 116-year-old Boston race, resulted in heightened security across the nation with cancellations of many professional sporting events as authorities search for a motive to the violence. (Photo by Spencer Platt/Getty Images)

A napkin and broken salt and pepper shakers are seen after customers fled an outdoor restaurant near the scene of a twin bombing at the Boston Marathon on April 16, 2013 in Boston, Massachusetts. The twin bombings, which occurred near the marathon finish line, resulted in the deaths of three people while hospitalizing at least 128. The bombings at the 116-year-old Boston race, resulted in heightened security across the nation with cancellations of many professional sporting events as authorities search for a motive to the violence. (Photo by Spencer Platt/Getty Images)

Injured runners and spectators being tended to near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo: Getty Images

Injured runners and spectators being tended to near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo: Getty Images

Injured runners and spectators being tended to near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo: Getty Images

Injured runners and spectators being tended to near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo: Getty Images

Injured runners and spectators being tended to near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo: Getty Images

Injured runners and spectators being tended to near the finish line of the 117th Boston Marathon on April 15, 2013.

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Police near the explosion at the 117th Boston Marathon on April 15, 2013.

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Runners in shock after the explosions

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Runners in shock after the explosions

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Runners in shock after the explosions

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Injured runners and spectators being tended to near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo: Getty Images

Injured runners and spectators being tended to near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo: Getty Images

Injured runners and spectators being tended to near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo: Getty Images

Injured runners and spectators being tended to near the finish line of the 117th Boston Marathon on April 15, 2013.

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Police onsite near the finish line of the 117th Boston Marathon on April 15, 2013.

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Police onsite near the finish line of the 117th Boston Marathon on April 15, 2013.

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Police onsite near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo: Getty Images

Police onsite near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo: Getty Images

Police onsite near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo: Getty Images

Police onsite near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo: Getty Images

Police onsite near the finish line of the 117th Boston Marathon on April 15, 2013.

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Runners in shock after the explosions

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Explosions went off near the finish line of the 117th Boston Marathon on April 15, 2013.

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Explosions went off near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo: Getty Images

Explosions went off near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo: Getty Images

Explosions went off near the finish line of the 117th Boston Marathon on April 15, 2013.

Photo by David L. Ryan/The Boston Globe via Getty Images

Explosions went off near the finish line of the 117th Boston Marathon on April 15, 2013.